390587 has 4 divisors (see below), whose sum is σ = 393576. Its totient is φ = 387600.

The previous prime is 390581. The next prime is 390647. The reversal of 390587 is 785093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390587 - 2¹⁰ = 389563 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 390587.

It is not an unprimeable number, because it can be changed into a prime (390581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289 + ... + 1562.

It is an arithmetic number, because the mean of its divisors is an integer number (98394).

390587 is a Friedman number, since it can be written as 5^(9-7^0)-38, using all its digits and the basic arithmetic operations.

2³⁹⁰⁵⁸⁷ is an apocalyptic number.

390587 is a deficient number, since it is larger than the sum of its proper divisors (2989).

390587 is a wasteful number, since it uses less digits than its factorization.

390587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 390587 is about 624.9695992606. The cubic root of 390587 is about 73.0980729747.

The spelling of 390587 in words is "three hundred ninety thousand, five hundred eighty-seven".